Reduced Preoperative Cervical Spine Flexion-Extension Range of Motion Is Associated With the Development of Upper Thoracic Proximal Junction Kyphosis in Adult Spinal Deformity Patients
Justin K. Scheer, Fthimnir M. Hassan, Chun Wai Hung, Ted Shi, Nathan J. Lee, Steven G. Roth, Alexander Tuchman, Corey T. Walker, Joseph M. Lombardi, Zeeshan M. Sardar, Ronald A. Lehman, Lawrence G. Lenke · 2026
Read Reduced Preoperative Cervical Spine Flexion-Extension Range of Motion Is Associated With the Development of Upper Thoracic Proximal Junction Kyphosis in Adult Spinal Deformity Patients by Justin K. Scheer, Fthimnir M. Hassan, Chun Wai Hung, Ted Shi, Nathan J. Lee, Steven G. Roth, Alexander Tuchman, Corey T. Walker, Joseph M. Lombardi, Zeeshan M. Sardar, Ronald A. Lehman, Lawrence G. Lenke (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13157466.txt.
Description
Justin Scheer leads a team of twelve authors asking whether a stiff neck before spinal deformity surgery predicts a specific failure above the correction. Proximal junctional kyphosis, a harmful bend at the top of the fused segment, struck about a quarter of their one hundred fifty-one patients. All had upper thoracic fusion endpoints and pre-operative bending neck X-rays.
Patients were grouped as no complication, silent complication, or symptomatic complication including outright failure. The symptomatic group had drastically less neck flexion beforehand, about eight degrees against twenty in the others. They also had far more low bone density. The authors suggest neck mobility and bone quality together flag who needs protective surgical planning.
Catalog record
| CREATOR | Justin K. Scheer, Fthimnir M. Hassan, Chun Wai Hung, Ted Shi, Nathan J. Lee, Steven G. Roth, Alexander Tuchman, Corey T. Walker, Joseph M. Lombardi, Zeeshan M. Sardar, Ronald A. Lehman, Lawrence G. Lenke |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 45 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |